An atom is the smallest particle of a substance.
An atom of iron is the smallest particle of iron.
The smallest particle of an element in chemistry is an atom. Atoms are made up of protons, neutrons, and electrons.
This particle is the atom.
A quark is the smallest particle in matter.
The smallest particle of an element is called an atom.
The smallest particle in the atom is the electron.
An atom is the smallest particle of a substance.
An atom is a particle, the smallest particle that can exist by itself.
An atom of iron is the smallest particle of iron.
No, for all elements the smallest particle that can exist independently is an atom.
atom is the smallest particle of matter
Electron
An atom
the atom
A Higgs-Boson particle.
This particle is called atom.